Lather producing machine



Feb. 27, 1940. A, P L 2,191,450

LATHER PRODUCING MACHINE Filed Mar-ch14, 1938 2 Sheets-Sheet 1 Feb. 27, 1940. A. B, CAMPBELL LATHER PRODUCING MACHINE Filed March 14, 1938 2 Sheets-Sheet 2 arrow.

Patented Feb.- 27, 1940 UNlTED s'r TE i PATENT r ce Lamina PRODUCING MACHINE Albert B. Campbell, Chicago, Ill., assignor to" AlphonsJ. Sumkowski, Chicago, Ill.

,Application March 14, 1938, Serial No. 195,886

2 Claims. (Cl. 259-40) My invention relates to a machine for producing a lather from liquid soap.

My objects, generally stated, are to provide a novel, simple, and inexpensive construction of machine for quickly producing lather, as for example, and more particularly, for use in shaving, which will be of the desired consistency. Referring to the accompanying drawings:

elevation of a machine "embodying my invention, certain parts of the same being shown in elevation and the section being taken at the line I on Fig. 5 and viewed in the direction of the Figure 2 is an enlarged fragmentarysectional view taken at the line 2 on Fig. 1 and viewed in the direction of the arrow. 7

..Figure 3Iis a similar view taken at the'line 3 on Fig. 2 and viewed in the direction of the I located at one end of the receptacle 6 and opening into the latter through a vertical slot 9 in the adjacent end wall of the receptacle; a valve l reciprocably mounted in the valve casing 8; a chamber I l extending along the bottom of the receptacle 6 and having an inlet I2 atone end opening at a tapered seal-forming portion l3 into the bottom of the valve casing B, and an out- -let l4 at its opposite end; means l5 for lather izing the soap fed into the chamber I l and feeding it in the form of lather through the outlet M; a power device 16, shown as an electric motor, for operating the latherizing and feeding means l5; and means i! for heating the soap in the chamber II and receptacle 6.

The valve casing 8, shown as formed integrally with the walls of the receptacle ,6, chamber H and the base l8 of the machine, contains a bushing 19 screwed into the upper end of the casing In slides.

abutment for one end of a coil spring v 22 surrounding the valve ill, the other end of" this Figure 1 is a view in longitudinal sectional spring engaging an inwardly extending annular shoulder 23 in the lower portion of the casing 8,

- the spring ZZ tending to hold the valve H3 in open position and away from the seat IS with which it cooperates.

The chamber H is of cylindrical form and its outlet M which is located at the topof the chamber is elongated crosswise of the chamber to cause the lather discharged through it to issue 1 in ribbon form, though thisisv not essential to the invention. I

The means for latherizing. and feeding the soap to the outlet M are shown as comprising a screw .24 preferably of such diameter as to provide an annular clearanceentirely arounditbechamber II', which forms a sleeve for the screw as represented at 25. The screw 24, shown as reaching short of the outlet end of the chamber II, is provided at its opposite end with a cylindrical portion 26 journaled in the adjacent open end of the chamber l l at which portion the screw connects with the shaft 21 of the electric motor IS, the casing of which is connected with lugs 28 having flanges 28 on the body of the machine.

The screw 24 is preferably of the plural par,-'

allel thread type, two such threads, 29 and 30, starting at diametrically opposed points at the end of the screw, being employed in the construction shown, the threads 29 and 30 being prefercrosswise taper of the threads of approximately The constructionof heating means shown comprises a member 32 of current insulating material, such as porcelain, of segmental cylindrical form to adapt it to he slid into a space 330i similar cross section provided in the body of the machine .and partially surrounding the chamber. The member 32 has an arcuate series of openings 34 extending lengthwise of the member and parallel with each other, in which openings coils 35 of electric resistance wire are confined, these coils being suitably connected together, as ior example in series for connection with any suitable source of current supply for generating the desired degree of heat.

The opening and closing of the valve In is tween the screw and the cylindrical wall of the preferably controlled through the medium of the same mechanism that controls the supplying of current to the motor 56. In the arrangement shown this is eifected by positioning the swinging lever 36 of the switch 3'! controlling the flow of current to the motor it, above the valve stem 28 and so positioning these parts that when the lever 36 is swung down to cut off the supply current to the motor 16 (in which position the lever 36 remains), the valve I will be forced against the seat l3 to close the inlet 12 to the receptacle 6, in which position the spring 22 will be com pressed; and when the switch lever 36 is swung upwardly to the position shown in Fig. l, to supply current to the motor it, the valve IE! will be in open position, it having been moved to this position by the expansion of the spring 22. The operation of the machine is as follows: Liquid soap having been supplied to the receptacle 5, the operator to effect discharge of lather through the outlet i4, throws the switch lever 36 to the position shown in Fig. 1 thus opening the receptacle 5 to the chamber H and supplying current to the motor it, which, by way of example, has an idling speed of about 16,000 R. P. M., when disconnected from the screw, which rapidly rotates the screw device 24. The liquid soap flows from the receptacle 6 into the chamber H in which it is engaged by the screw device 24 which operates to whip the soap and feed it toward the outlet. The action of the screw 24 produces a suction in the chamber H which draws air therein by leakage around the cylindrical portion 25. It is obvious that each increment of air and lathering medium is segregated from further supplies of air as well as from additional lath'ering medium while it driven forward within the screw at high speed. As a result, a lather consisting of extremely fine bubbles is produced which will last for extraordinarily long periods. The screw in acting on the soap causes it to become in the condition of a lather, in which form it issues from the outlet I t for use, it having been found in practice a sufficient amount of'lather for properly covering ing extends at its lower surface below the position occupied by the upper surface of the 'flange 2! when the valve, under the control of the switch lever 35, is in its full-open position, the bushing forms a stop for the flange 2| limiting upward movement of the valve; it thus being possible to attain, by adjustment, any desired degree of opening of the valve.

While I have illustrated and described a particular machine embodying my invention, I do not Wish to be understood as intending to limit it thereto as the same may be variously modified and altered and the invention embodied in other forms of structure without departing fro the spirit thereof.

What I claim as new, and desire to secure by Letters Patent, is: V

1. In lathering machine, a receptacle for a liquid lathering medium, a sleeve, a screw within the sleeve, means for rapidly rotating the screw, said receptacle having a restricted liquid outlet communicating with one end of the screw, said end of the screw being accessible to air, and a lather outlet at the other end of the screw.

2. A lathering device, comprising a receptacle for liquid lathering' medium having an outlet in a lower portion thereof, a cylindrical chamber below the receptacle, restricted means for feeding lathering medium to the chamber, ascrew substantially filling said cylindrical chamber, a lathering outlet from said chamber, and means for rotating said screw, the screwbeing arranged in the chamber to permit restricted access: of air thereto.

ALBERT B. CAMPBELL. 

